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12013131233120 = 25575082070207
BaseRepresentation
bin1010111011010000011001…
…1010110111011101100000
31120112102222202210212020212
42232310012122313131200
53033310343043424440
641314431205553252
72346630406445003
oct256640632673540
946472882725225
1012013131233120
113911816443686
121420285415828
13691aab01c404
142d761d94953a
1515c750b46465
hexaed066b7760

12013131233120 has 24 divisors (see below), whose sum is σ = 28381022538624. Its totient is φ = 4805252493184.

The previous prime is 12013131233113. The next prime is 12013131233149. The reversal of 12013131233120 is 2133213131021.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37541034944 + ... + 37541035263.

It is an arithmetic number, because the mean of its divisors is an integer number (1182542605776).

Almost surely, 212013131233120 is an apocalyptic number.

12013131233120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12013131233120 is an abundant number, since it is smaller than the sum of its proper divisors (16367891305504).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12013131233120 is an equidigital number, since it uses as much as digits as its factorization.

12013131233120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75082070222 (or 75082070214 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12013131233120 its reverse (2133213131021), we get a palindrome (14146344364141).

The spelling of 12013131233120 in words is "twelve trillion, thirteen billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 75082070207 150164140414 300328280828 375410351035 600656561656 750820702070 1201313123312 1501641404140 2402626246624 3003282808280 6006565616560 12013131233120